/*
 +-----------------------------------------------------------------------------------------------+
 | Project : UKAPI
 +-----------------------------------------------------------------------------------------------+
 | Project Description : Universal & Kernel API
 +-----------------------------------------------------------------------------------------------+
 | File Description :
 |   Win32 or Posix Scheduler
 |                                                 
 +-----------------------------------------------------------------------------------------------+
 | Licence : MIT Licence
 +-----------------------------------------------------------------------------------------------+
 | Copyright (c) 2006 Olivier Vanhoucke
 | 
 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
 | and associated documentation files (the "Software"), to deal in the Software without 
 | restriction, including without limitation the rights to use, copy, modify, merge, publish, 
 | distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the 
 | Software is furnished to do so, subject to the following conditions:
 | 
 | The above copyright notice and this permission notice shall be included in all copies or 
 | substantial portions of the Software.
 | 
 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 | BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
 | DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 +-----------------------------------------------------------------------------------------------+
*/


/**
 * Inclusions standards
 */
#include <ukapi.h>

/**
 * Inclusions locales
 */


/**
 * @fn	void scheduler_win32_posix_schedule()
 * @brief	
 * @param	
 * @return	
 * @retval 
 */
void scheduler_win32_posix_schedule()
{
	plist_node_t	le_task = null;
	ptask_manager_t tm		= &global_kernel().task_manager;

	if ( tm == null )
	{
		return;
	}

	for ( 
		le_task = list_head( &tm->scheduler.list ); 
		le_task != null; 
		le_task = list_next( le_task ) 
		)
	{
		ptask_t ptask;

		if ( ( le_task == null ) || ( le_task->data == null ) )
		{
			continue;
		}

		ptask = (ptask_t) le_task->data;

		if ( ptask->new == true )
		{
			_task_create( ptask );			
		}

		if ( ptask->update_priority == true )
		{
			// todo : task update priority
			ptask->update_priority = false;
		}

		switch ( ptask->state )
		{
			case task_state_running_e:
				break;

			case task_state_ready_e:
				_task_resume( ptask );
				ptask->state = task_state_running_e;
				global_kernel().task_manager.current_task = ptask;
				break;

			case task_state_suspended_e:
				if ( ptask->new == false ) // beurk !
				{
					_task_suspend( ptask );
				}
				else
				{
					ptask->new = false;
				}
				break;

			case task_state_stopped_e:
				_task_destroy( ptask );
				ptask->pfnTask = null;
				break;
		}
	}
}
